Specialist Questions

Category: Root Canal Instrumentation

Why are Zendo’s Pathfinder files 3% while some others are 2%?

By Dr. Barry H. Korzen | Posted July 11, 2016

As with any instrument its effectiveness is based on a combination of flute design and taper. Hand stainless steel files have a 2% taper and therefore the natural progression for the next instrument would be a 3% taper. Ultimately we want to instrument the canal to a minimum 4% taper therefore combining a 3% taper with an effective flute design speeds up the entire instrumentation process.

Interview with Dr. John T. McSpadden on Instrument Design and Technique Protocol (Part 3)

By Dr. Barry H. Korzen | Posted April 4, 2014

We know that debris formed during canal preparation and then forced through the apex could lead to an inflammatory reaction and prolonged pain for the patient. Is there a way to reduce, or even eliminate, the possibility of this happening?

Interview with Dr. John T. McSpadden on Instrument Design and Technique Protocol (Part 2)

By Dr. Barry H. Korzen | Posted March 25, 2014

In Part 2 of a 4 part interview, John McSpadden suggests measures to reduce the possibility of having a procedural accident during endodontic instrumentation.

Interview with Dr. John T. McSpadden on Instrument Design and Technique Protocol (Part 1)

By Dr. Barry H. Korzen | Posted March 19, 2014

Why is the design of the instrument so important and how does that affect the technique protocol that the clinician ultimately chooses? Dr John T McSpadden answers this most important question in Part 1 of a 4 part interview.

Rethinking Legacy Canal Shaping – An Interview with Dr. Ken Serota

By Dr. Barry H. Korzen | Posted December 13, 2013

Have you noticed how, at almost every lecture during the breaks, the presenter is surrounded by those wanting to ask questions on topics that may or may not have been discussed in the lecture. An exchange takes place between the person asking and the person answering the question, with everyone else listening in. Well that’s the idea behind our Blogcasts. We begin each discussion with a topic and at least two people. Follow the discussion as it develops over time and if you have any comments send an email to editor@theendoacademy.com and we will pass them on to the participants.